31542652 has 12 divisors (see below), whose sum is σ = 55244560. Its totient is φ = 15758496.

The previous prime is 31542631. The next prime is 31542659. The reversal of 31542652 is 25624513.

It is a self number, because there is not a number n which added to its sum of digits gives 31542652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31542659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4249 + ... + 9007.

Almost surely, 2^31542652 is an apocalyptic number.

It is an amenable number.

31542652 is a deficient number, since it is larger than the sum of its proper divisors (23701908).

31542652 is a wasteful number, since it uses less digits than its factorization.

31542652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6420 (or 6418 counting only the distinct ones).

The product of its digits is 7200, while the sum is 28.

The square root of 31542652 is about 5616.2845369515. The cubic root of 31542652 is about 315.9604581190.

The spelling of 31542652 in words is "thirty-one million, five hundred forty-two thousand, six hundred fifty-two".